502 results about "Continuous flow" patented technology

The invention discloses steel belt winding equipment and a winding forming method thereof. The steel belt winding equipment comprises a controller, an unwinding device, a correcting device, an annealing device, a pushing device, a machining device, a winding device and a discharging and conveying device, the machining device comprises a guide sleeve and a plurality of machining telescopic mechanisms, and the telescopic end of each machining telescopic mechanism is provided with a cutter mechanism, an upper clamping mechanism, a lower clamping mechanism and a pre-bending mechanism. According to the steel belt winding equipment and the winding forming method thereof, all the devices are controlled to work cooperatively through the controller, integration of all the working procedures is achieved, the production efficiency of spring steel is effectively improved, the consistency of products is ensured, and continuous assembly line work from the steel belt to the formed spring steel is achieved.

The invention belongs to the technical field of workpiece sorting and stacking, and particularly relates to an automatic sorting and stacking production line and a control method thereof. According to the automatic sorting and stacking production line, automation of the whole process of workpieces from automatic feeding, sorting and conveying, recognition, sorting to stacking is achieved, manual operation is completely replaced, the problems that manual sorting is low in efficiency and high in labor intensity are solved, and the production efficiency is remarkably improved; moreover, the front and back and forward and reverse placement states of the workpieces can be accurately identified through the visual identification mechanism, and the workpieces in different states are accurately sorted to corresponding stacking stations by combining intelligent scheduling of the control module and matching with automatic sorting and stacking of the sorting and conveying structure and the carrying mechanism, so that scratches of electroplated layers and disordered packaging are effectively avoided; besides, the sorting conveying belt adopts intermittent constant-stroke operation and is matched with the workpiece positioning modules which are arranged at intervals, so that the feeding and discharging actions are strictly synchronous with the conveying rhythm, the carrying positioning precision is ensured, and continuous line production is realized.

The invention relates to the technical field of organic synthesis, in particular to a preparation method of p-tert-butoxystyrene. According to the preparation method provided by the invention, the p-tert-butoxystyrene is prepared by utilizing the continuous flow microreactor, the operation is simple and safe, the efficiency is high, the reaction time is short, the temperature is low, expensive reagents are not used, the amplification effect does not exist, the prepared p-tert-butoxystyrene product is high in yield and purity and stable in quality, and the method is suitable for large-scale production and has wide application prospects. The production cost can be greatly reduced, and the production safety is improved.

The invention discloses a preparation method of hydrogenated benvitimod and analogues thereof, and belongs to the technical field of organic synthesis. The method comprises the following steps: S1, mixing a compound I and palladium carbon in a solvent to obtain slurry; s2, under the protection of nitrogen, preheating the silicon carbide microchannel reactor to 20-70 DEG C, and then introducing hydrogen and the slurry in the step S1; the reaction temperature is 20-70 DEG C, the reaction pressure is 1-10 kg, and the retention time of the slurry is 1-20 min; and S3, carrying out solid-liquid separation, concentration, recrystallization and drying on the reaction liquid in the step S2 to obtain a compound II. The method adopts continuous flow production and is suitable for industrial production; the reaction speed is high, and the residence time does not exceed 20 min and is much shorter than overnight time in the prior art; the reaction yield is high and can reach 95% or above, and the yield of part of compounds can reach 99% or above; the catalyst dosage is small, and the reaction cost is greatly reduced.

The present application discloses a flowmeter for measuring continuous flow, and relates to the technical field of flowmeters. The present application includes a main housing, wherein a plurality of fixed plates are symmetrically fixedly connected inside the main housing, wherein a rotating shaft is rotatably connected inside the plurality of fixed plates, and a magnetic coupler is fixedly connected on the rotating shaft. The present application is provided with a sealing mechanism and a fastener, and the inside of the fixed block is continuously inflated through the air inlet, thereby driving the airbag to expand, and effectively improving the sealing effect between the pipeline and the main housing, thereby effectively reducing fluid leakage, thereby ensuring that the flowmeter can accurately measure the flow, avoiding waste of resources and excessive consumption, and avoiding safety accidents and production losses caused by leakage, and with the impact of the gas, the clamping plate will be driven to move together through the sealing plate, thereby clamping and stabilizing the outer wall of the pipeline, so that the pipeline can remain stable during the process of conveying liquid, thereby reducing the interference of external vibration or noise on the flowmeter measurement results.

The invention discloses a full-link traffic playback test method and system for a financial system, and the method comprises the steps: forwarding network traffic from a production server to a pre-release environment server, and carrying out the preprocessing, and then generating real-time traffic; performing full-link playback on the real-time traffic in the pre-release environment server, generating a playback result, and feeding back the playback result to the test platform to generate monitoring data; and converting the real-time traffic into historical traffic, performing full-link playback, and generating monitoring data. And according to the response state and the monitoring data of the pre-release server, analyzing the defect of version change to generate a daily test report. According to the invention, full-link closed-loop testing is realized, and a full-service system is covered. All-time testing is supported, request sending is flexibly configured, and continuous flow playback during the market opening period is ensured. Through testing flow classification, the flow is forwarded and stored in real time, the environmental difference is solved through preprocessing, and the defect discovery rate is improved. The problems of insufficient full-link regression test means, incomplete scene coverage and low test efficiency in the prior art are solved.

The invention relates to the technical field of plasterboard processing control, in particular to a functional plasterboard processing control system which comprises a real-time data acquisition module, a dynamic flow adaptation module, a multi-nozzle cooperative control unit, a curing quality closed-loop regulation and control unit, a self-adaptive compensation algorithm module and a multi-process cooperative execution unit. The dynamic flow adaptation module generates an initial flow reference value based on a preset spraying coverage rate model, calculates an atomization efficiency attenuation coefficient in combination with the humidity compensation sub-model, and generates a dynamic flow instruction set by superposing a base material porosity weight. The multi-nozzle cooperative control unit generates a continuous flow distribution diagram through a spatial interpolation algorithm and a nozzle trajectory equation, and dynamically adjusts the atomization pressure and the opening and closing time sequence. Under abnormal working conditions, a parameter rollback mechanism calls historical snapshots to recover a control state, and an elastic weight solidification technology balances model stability and real-time adaptability. According to the method, dynamic adaptation of spraying parameters, collaborative optimization of working procedures and abnormal self-healing are achieved, and the uniformity of the coating is improved.

Disclosed are a method and an installation for discontinuously counting objects on a moving vehicle, the vehicle moving in a continuous flow along a straight or substantially straight course, for example for counting gas cylinders loaded on a moving vehicle, for example a vehicle entering and / or leaving an industrial site.

The utility model relates to the technical field of sampling equipment and discloses a full-automatic solid sample sampling and weighing system which comprises a supporting seat, a material barrel is arranged on the upper side of the supporting seat, a robot is arranged on one side of the supporting seat, an automatic discharging box is arranged on the side, away from the material barrel, of the robot, and a plurality of sampling bottles are arranged in the automatic discharging box. A weighing device is arranged on one side in the automatic discharging box, a coding device is fixed to the side, close to the sampling bottle, of the robot, a sampling device is arranged on the side, close to the material barrel, of the upper portion of the robot, a dust suction pipe is fixed to one side of the sampling device, and a camera is fixed to one side of the dust suction pipe; the utility model has the advantages that the sampling device is controlled by the robot, so that the problems that the conventional sampling method generally involves sampling from materials by an operator through a tool, the representativeness and the accuracy of the method are easily influenced by skills and subjective factors of the operator, and the method is not suitable for large-scale production or continuous flow are solved.

The invention discloses a self-suction type magnetic suspension pumping device which comprises a magnetic suspension pump, a self-suction pump and a controller, the magnetic suspension pump comprises a pump head and a magnetic suspension motor, the pump head is provided with a first inlet and a first outlet, the self-suction pump is provided with a second inlet and a second outlet, and the second inlet of the self-suction pump is connected with the first outlet of the magnetic suspension pump in series; the controller is configured to control the working states of the magnetic suspension pump and the self-priming pump, and the self-priming pump is configured to suck a medium in a pump head of the magnetic suspension pump to form negative pressure, so that to-be-conveyed fluid enters the pump head through the first inlet, and the magnetic suspension pump completes self-priming; after the magnetic suspension pump completes self-absorption, the output fluid is subjected to follow flow through the follow flow bypass; or after the magnetic suspension pump completes self-priming, the output fluid flows through the straight-through flow channel of the self-priming pump. According to the invention, the self-absorption function of the magnetic suspension pump is realized on the premise of not influencing the original performance of the magnetic suspension pump and not introducing particulate matter pollution or increasing shear force in the ultra-clean environment application of biological medicine or semiconductor manufacturing and the like.

The invention discloses a continuous flow automatic polypeptide solid phase synthesis device which comprises a synthesis unit, a liquid storage unit, a waste output unit, a product bottle and a control unit, and the synthesis unit comprises a microchannel reactor, a washer, a circulating pump, a draw-off pump, a check valve and a product delivery pump; the liquid storage unit is connected with the draw-off pump, the draw-off pump is connected with the micro-channel reactor, the check valve is installed at the input end of the micro-channel reactor, the micro-channel reactor is connected with the washer, the waste output end of the washer is connected with the waste output unit, and the product output end of the washer is connected with the circulating pump and the product conveying pump. The circulating pump is connected to the micro-channel reactor, and the product conveying pump in the last synthesis unit is connected with the product bottle; and the control unit is connected with the circulating pump, the draw-off pump, the check valve, the product conveying pump and the waste output unit. The invention further discloses a continuous flow automatic polypeptide solid-phase synthesis method, and automatic polypeptide production is achieved.

The invention discloses a continuous flow production method of high-purity chlorantraniliprole, and belongs to the technical field of chemical synthesis. The method comprises the following steps: simultaneously pumping a mixed solution containing 3-bromo-1-(3-chloro-2-pyridyl)-1H-pyrazole-5-formic acid, a solvent, an acid-binding agent and 2-amino-5-chloro-N, 3-dimethylbenzamide and a catalyst solution into a mixing unit of a continuous flow reactor I to form a reaction mixture flow; the material flow enters a continuous flow reactor I for condensation reaction to obtain a chlorantraniliprole solution; simultaneously pumping the mixed solution and a quenching agent solution into a continuous flow reactor II, and quenching to separate out crystals; and continuously centrifugally separating the quenching liquid containing the crystals, washing and drying to obtain a chlorantraniliprole refined product. According to the present invention, the full continuous flow process is adopted, the reaction unit and the post-treatment unit are included, the material continuously flows, and when the process is stable, the material composition, the temperature and other parameters in the reactor are only related to the reaction position and do not change with time, such that the production process and the product quality stability are ensured.

The utility model discloses a simple continuous flow microreactor device with replaceable packing. The simple continuous flow microreactor device comprises a liquid pipeline system, a gas pipeline system, a microreactor and a cooling and product collecting system, the micro-reactor is a filler type micro-reaction tube, the filler type micro-reaction tube comprises a tube body, the tube body is filled with a replaceable porous filler, and the porous filler has both a microporous structure and a mesoporous structure; filtering sieve plates for intercepting porous fillers with different sizes are respectively arranged at the upper end and the lower end of the pipe body, and are respectively connected with the material inlet and outlet joint through fixing pieces for stabilizing the fillers; a blade ring and a sealing ring are sequentially arranged between the fixing piece and the pipe body from top to bottom. The microreactor disclosed by the utility model is applied to preparation of amide compounds, and compared with a conventional microreactor, the microreactor disclosed by the utility model can obtain higher product yield.

The invention belongs to the technical field of catalyst continuous flow method preparation, and particularly relates to a method for preparing a supported copper-based catalyst by using a sectional continuous flow technology. The sectional continuous flow method has the advantages of automatic continuous production, accurate control of reaction conditions, uniform mixing of materials, reduction of personal errors and the like, and effectively solves the problems of long time consumption, easy non-uniform mixing, poor repeatability and the like of an impregnation method. Secondly, the active carbon serves as a carrier, copper serves as a main active component, ethyl alcohol serves as a solvent, the sectional type continuous flow technology is utilized, the particle size of copper species is regulated and controlled by adjusting the gas flow rate, the copper-based catalyst which is evenly distributed, small in particle size and high in activity is prepared, the production efficiency of the catalyst is improved, and meanwhile the catalyst yield is increased. And the catalytic performance of the catalyst in the reaction of preparing vinyl chloride from acetylene and hydrogen chloride is optimized.

The invention discloses continuous annealing equipment and an annealing process for round steel bar annealing, and relates to the technical field of metal heat treatment equipment and processes, the continuous annealing equipment comprises an annealing furnace barrel, an annealing box heating pipe and a base, one side face of the annealing furnace barrel is fixedly communicated with an annealing box, and a public self-driving assembly is arranged in the annealing box. The rotary cylinder and the supporting disc are driven through the public self-driving assembly, the round steel bars are kept to rotate synchronously before and after entering the annealing box, continuous circulation and rotary annealing are achieved, compared with traditional stacking annealing, the round steel bars on the inner side of a material pile can also fully absorb heat, and therefore the problems that temperature distribution is uneven, and temperature rise of part of the steel bars is too slow are solved; therefore, the uniform annealing effect of each round steel bar is guaranteed, the internal structure uniformity, the hardness stability and the subsequent machining performance of the product are remarkably improved, and the machining safety and reliability of the material are improved.

The invention provides a factory composed of medical intermediate workshops which can be freely combined and are modularly designed, and the factory is composed of the medical intermediate workshops which can be freely combined and are modularly designed. Workshops such as a hydrogenation workshop, an anti-corrosion reaction workshop, a high-temperature and high-pressure reaction workshop, a low-temperature reaction workshop, a common enamel reaction workshop, a continuous flow workshop, a rectification workshop, a drying workshop and a public engineering workshop are standardized and independent, each workshop is provided with a multi-direction interface, rapid connection and switching are supported, flexible combination is achieved, and the production efficiency is improved. Therefore, the production requirements of different medical intermediates are met. All the workshops are connected through intelligent pipelines and an automatic dispatching system, efficient conveying of liquid or gas or solid materials is completed through quick connectors, multi-way valves and the dynamic switching technology, meanwhile, real-time path planning and parameter adjustment are achieved in combination with the advanced control technology, and the stability and quality consistency of the production process are guaranteed. According to the technology, flexible production of multiple medical intermediates can be supported, the switching time and the equipment investment cost are remarkably reduced, the workshop utilization rate is increased, and an efficient, intelligent and extensible solution is provided for production of the medical intermediates.

The invention discloses an efficient heat transfer chemical microchannel reactor, which adopts a modular five-layer stacked structure to form a core mixing unit, and is characterized in that efficient mass transfer and heat exchange are realized through the synergistic effect of three types of passive mixing strengthening units; then, the secondary flow is cut by a unique intermittent threaded screw structure in the center of the cross-shaped disturbance disc, and secondary flow is generated; in the upper and lower flow channel discs, fluid is sequentially subjected to triple mixing reinforcement of the eccentric blade wheel, the inverted U-shaped groove structure and the disturbance protrusion unit; the integrated heat exchange disc adopts a C-shaped alternate overturning runner design; in addition, the equipment is provided with a miniature spherical regulating valve, so that the flux is controllable, and a bidirectional flow channel design is adopted; the mixing path is prolonged. According to the design, the space utilization rate and the mixing efficiency are remarkably improved, the negative influence of active mixing is avoided, the device is particularly suitable for refined continuous flow treatment, and a modular structure supports flexible stretching of a reaction process.

The invention belongs to the technical field of fluorine chemical industry, and particularly relates to a continuous production process of heptafluoroisobutyryl fluoride. The process is carried out in a tubular reactor, the tubular reactor is divided into a first preheating section, a second reaction section and a third reaction section, a fluorinated molecular sieve catalyst is filled in the second reaction section and the third reaction section, each reaction section is respectively heated to a corresponding preset temperature, carbonyl fluoride and hexafluoropropylene which are mixed and preheated are introduced into the tubular reactor, and a fluorinated molecular sieve catalyst is introduced into the tubular reactor. Enabling the gas to sequentially flow through each section of the tubular reactor, contacting and reacting with the fluorinated molecular sieve catalyst in the second reaction section and the third reaction section, and condensing the gas discharged from the outlet end of the tubular reactor to obtain a heptafluoroisobutyryl fluoride product. According to the process, carbonyl fluoride and hexafluoropropylene are used as gas-phase reaction raw materials, and heptafluoroisobutyryl fluoride is synthesized through a one-step continuous flow rapid reaction. The reaction route is short, the reaction conversion rate and selectivity are high, and industrial large-scale production is easy to realize.

The invention relates to the technical field of metal welding, and discloses milling cutter automatic welding equipment which comprises a base and a rotatable workbench installed on the base, a plurality of sets of clamping discs which can independently rotate and are used for fixing to-be-welded cutter bodies are evenly arranged on the workbench in the circumferential direction, and a material disc provided with the cutter bodies is arranged on the base. The base is further fixedly provided with a feeding robot. An alloy feeding robot is fixedly arranged on the base, a gluing structure is arranged between the vibration disc and the alloy feeding robot, and a welding device for welding a cutter alloy and a cutter body is further fixedly installed on the base; a multi-station parallel machining system is constructed, the workbench rotates to drive the clamping disc to continuously flow between the alloy conveying robots and the feeding robots, synchronous installation of the cutter body and the cutter alloy is completed, the cutter body assembling time is remarkably shortened, unmanned and high-precision continuous production of the whole cutter welding process is achieved, and the production efficiency is improved. And the production cost is greatly reduced.

The invention discloses a double-column circulating chromatographic system which comprises an isocratic elution device, a gradient elution device, a pre-column valve, a chromatographic column device, a post-column valve, a detector device, a waste liquid tank, a fraction collection device, a reflux device and a connecting pipeline, the isocratic elution device and the gradient elution device are connected with the pre-column valve, the chromatographic column device and the post-column valve through connecting pipelines after being connected in parallel, the post-column valve is connected with the detector device and the waste liquid tank which are arranged in parallel through connecting pipelines, and the detector device is connected with the fraction collector through a connecting pipeline. The method has the beneficial effects that (1) not only can the purification efficiency and yield be improved, but also stable peak appearance time and a highly consistent purification spectrum can be obtained, so that stable impurity spectrum distribution is obtained, and continuous automatic production is realized; and (2) multi-time multi-system automatic circulation purification of the same system is realized, the purification efficiency is remarkably improved, human intervention and operation errors are reduced, the pollution risk is reduced, and industrialization of continuous flow purification is realized.

The invention discloses a complex multi-runner optimization design method for a hydraulic element, and belongs to the technical field of digital design and manufacturing of the hydraulic element. The method comprises the steps that parameters such as a runner starting point and an initial obstacle control point are input; generating an initial obstacle; obstacle avoidance and path searching are carried out by adopting an optimization algorithm, and a continuous flow channel is generated through spline curve smoothing processing by taking the shortest flow channel as a constraint; and taking the newly generated flow channel as a dynamic obstacle to update the map, circulating until all the flow channels are completely arranged, and then outputting a result. Aiming at the problems of low efficiency, weight redundancy, large pressure loss and the like of a traditional manual layout method in the design process of a hydraulic element with a complex multi-runner structure, the method realizes automatic layout of the multi-runner structure, and removes redundant materials of the element by reducing a runner right-angle bend and the total length of the runner structure and cooperating with advanced manufacturing technologies such as additive manufacturing, so that the design efficiency of the hydraulic element is improved. Light weight is realized; the pressure loss is reduced by optimizing the runner shape and shortening the length, the layout efficiency and the element performance are improved, and manpower is reduced.

The woven bag transferring equipment comprises a workbench, a driving wheel is installed at the output end of a rotating motor, a conveying belt is installed at the upper end of a discharging guide table in an embedded mode, sliding grooves are formed in the front edge and the rear edge of the upper end of the discharging guide table, sliding blocks are installed on the inner walls of the sliding grooves in an inserted mode, and locking rotary knobs are installed at one ends of the sliding blocks in an inserted mode. An upper flow guide mechanism is installed between the sliding blocks, a connecting hinge is installed on the edge of one side of the upper end of the discharging guide table, a protective cover is installed on the other side of the connecting hinge, and a storage groove is formed in one side of the supporting frame. According to the woven bag transferring equipment, continuous flow guiding can be conducted through the upper flow guiding mechanism, the transferring pushing block, the conveying belt and the driving wheel, the transferring efficiency is better, clamping flow guiding can be conducted through the upper flow guiding mechanism, transferring is smoother, clamping flow guiding can be conducted through the upper flow guiding mechanism and the conveying belt, continuous flow guiding can be conducted when one set is damaged, and the transferring efficiency is improved. Therefore, the use effect is good.

The application discloses a powder pulse sorting method and a device thereof. The method is to utilize the rule that the relatively heavy powder in the powder fluid only settles in a separation working section due to stall in the process of continuously flowing through the powder pulse sorting device comprising at least one pulse sorting unit to realize powder sorting. The device has two configurations of single selection and double selection. The device in the double selection configuration can synchronously sort heavy powder and light powder, including dry selection and wet selection. Meanwhile, the method and the device thereof can be combined with other process methods to arbitrarily construct various circulating process flows, including granularity grading, throw selection, rough selection, fine selection, backflow re-selection, medium powder sweeping selection, light powder sweeping selection and mixed selection. The method can be used for classification and sorting of powder and can also be used for sorting of powder granularity, and simultaneously provides a new technical approach and device for modern ore dressing production and process transformation.

The invention relates to the field of chemistry, and discloses a method for continuously synthesizing 3, 5-dihalogen bromobenzene by using a continuous flow reactor, which is used for continuously synthesizing 3, 5-dihalogen bromobenzene by using the continuous flow reactor for the first time, changes a traditional kettle process into a continuous process, solves a series of problems of long reaction time, high safety risk and the like of batch-type reaction, and improves the yield of 3, 5-dihalogen bromobenzene. According to the present invention, the reaction conditions are mild, the reaction parameters of the 3, 5-dihalogen bromobenzene are optimized, the use of the expensive raw material or solvent is avoided, the raw material is simple and easily available, and the method has advantages of low production cost, simple operation, environmental protection, mild reaction, short reaction time, safe reaction safety compared with the conventional method, high conversion rate, less impurity, simple post-treatment, and industrial production benefiting, and can be used for industrial production of 3, 5-dihalogen bromobenzene. Compared with the prior art, obvious technical progress is achieved.

The utility model discloses a kind of heavy metal material separation devices of renewable resources, including separation tank, the inside rotation of separation tank is equipped with two rotating rods C, the outer surface of two rotating rods C is commonly transmission installation and has conveyor belt C;The utility model is rotated by motor C and conveyor belt C rotation, to transport the material after crushing, this step ensures the continuous flow of material in the processing process, creates conditions for subsequent chemical treatment, by pump body and input pipeline extraction separation tank bottom reagent, by output pipeline and spray head respectively to magnetic material and non-magnetic material are sprayed, this step makes the heavy metal on the surface of material and reagent react, to realize the separation of heavy metal, can effectively separate and recover heavy metal material, reduce the pollution of heavy metal to environment, not only help to protect environment, but also recycle valuable heavy metal resources, promote the recycling of resources.

The invention relates to the field of chemical equipment, in particular to a 1-nitroanthraquinone continuous production process based on a dynamic liquid membrane continuous flow reactor, which comprises a solid feeding device, a homogeneous emulsifier, a quenching kettle, a solid-liquid separator, a centrifugal separator and a dynamic liquid membrane reactor, a sulfuric acid storage tank is divided into two branches through a sulfuric acid feeding pump, one branch is connected to the dynamic liquid membrane reactor, the other branch is connected to the dynamic liquid membrane reactor through a flow self-control valve, the quenching kettle is connected to a solid-liquid separator, the solid-liquid separator is divided into two branches, one branch is connected to an anthraquinone crude product storage tank, the other branch is connected to a centrifugal separator, and the other branch is connected to a gas-liquid separator. The centrifugal separator is divided into two branches, one branch is connected to the acid water storage tank, and the other branch is connected to the dichloroethane storage tank, so that the reaction selectivity of the anthraquinone nitration reaction can be effectively improved, high-viscosity solids are prevented from being blocked, and the conversion rate of raw materials in the continuous reaction of the anthraquinone nitration reaction is improved.

The invention relates to the technical field of preparation of slow-release oxidized microspheres through micro-channel continuous flow, in particular to a device for preparing slow-release oxidized microspheres through micro-channel continuous flow and a preparation method of the device. According to the technical scheme, the device for preparing the slow-release oxidized microspheres through the microchannel continuous flow comprises a first raw material premixing device, a second raw material premixing device, a third raw material premixing device, a first power device, a second power device, a third power device, a control assembly, an extended reaction assembly and a product treatment assembly, a second raw material premixing device is arranged on one side of the first raw material premixing device; according to the method, the emulsification effect and efficiency are enhanced through the micro-fluidic chip, the reaction tube is prolonged to introduce the cross-linking agent, and the final product is dried and collected through the treatment system, so that the purpose of continuously preparing the slow-release oxidized microspheres is achieved, and the technical defect that the size and the internal structure of the slow-release oxidized microspheres prepared by a traditional intermittent method are difficult to accurately control is overcome; the problems that conventional micro-fluidic equipment is complex, and continuous production and industrial mass production cannot be achieved are solved.

The invention is suitable for the technical field of seasoning filling, and provides a bagged seasoning filling device and method.The bagged seasoning filling device comprises a filling device body, an auxiliary discharging mechanism is arranged at the top of the filling device body, and a drying mechanism is arranged in the middle of the filling device body; according to the bagged seasoning filling device, the auxiliary discharging mechanism is arranged at the top of the filling device body, and a linkage structure of a first gear, a second gear, a transmission rod and a stirring rod is utilized, so that a stirring piece continuously turns over seasonings in a storage box and a discharging box, and therefore caking structures formed in the seasonings are effectively damaged before filling; the seasoning feeding device is simple in structure and convenient to operate, avoids bridging, blocking and other phenomena caused by long-term standing or wetting of seasoning, achieves controllable adjustment of the feeding action in cooperation with transmission conversion of an electric push rod, a rack and a third gear, enables the seasoning to be kept in a stable and continuous flowing state in the feeding process, improves the feeding uniformity and reliability, and reduces the manual intervention frequency.

The invention discloses a method for preparing nitro-mesitylene through a micro-channel nitration reaction. The method comprises the following steps: respectively conveying mesitylene, fuming nitric acid and sulfuric acid to a micro-channel reaction module through a metering pump, and completing nitration reaction within a retention time of tens of seconds to several minutes. The introduction sequence of nitration reaction materials, the reaction retention time and the reaction temperature are cooperatively controlled, the nitration reaction is completed in the microchannel reactor in a continuous flow mode, operation is easy and convenient, safety is high, efficient continuous production can be achieved, meanwhile, emission of three wastes is reduced, and the industrial application advantages of being environmentally friendly and economical are achieved.

The invention discloses a method and a device for preparing a D-A type thermally activated delayed fluorescent material through continuous flow. A two-section type continuous flow reaction system is adopted, wherein the first continuous flow reaction system is connected with a tubular reactor in series through a micro-channel reactor, and efficient nucleophilic substitution reaction of an electron acceptor halide and an electron donor is achieved under palladium catalysis; the second continuous flow reaction system is driven by double feeding pumps, so that a D-A type compound prepared from a precursor and nonaphenyl tertiary alcohol are subjected to Friedel-Crafts alkylation modification under the catalysis of acid, the reaction time of the two steps is greatly shortened, and the yields of the two steps are both 88% or above. Through flow rate limitation, solvent concentration, solid content and temperature-pressure cooperative control, the problems of palladium-containing catalyst slurry transmission and side reaction inhibition are solved. According to the method, continuous kilogram-level production of the TADF material is achieved, compared with a traditional process, energy consumption is reduced, intermediate separation is not needed, and a new normal form is provided for industrial preparation of the OLED material.